Machine for use in the manufacture of boots and shoes



Mam}; 1924. 1,487,706

C. F. BENNION MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES Original Filed June 22, 1920 2 Sheets-Sheet 1 6 6 O 16 O x 5 H i O 7 I? (11)) QT H m 0 9 o 1' Marq h 25 1924., 1,487,7fl5

c. F. BENNION MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES 2 Sheets5heet 2 Original Filed June 22, 1920 //v VE/V 70R.

.i atented Mar. 25, 1924.

STATES ?ATET CHARLES FANCETT BENNION, F LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PETERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES.

Application filed June 22, 1920, Serial No. 390,943. Renewed January 5, 1924.

To all 2072 am it may concern:

Be it known that I, CHARLES F. BENNION, a subject of the King of England, residing at Leicester, Leicestershire, England, have invented certain Improvements in Machines for Use in the Manufacture of Boots and Shoes, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for use in the manufacture of boots and shoes, in which different operations are performed in succession on the shoe in the course of the cycle of operations of the machine' Such operations may include, for example, the pulling of the upper and the subsequent overlaying and fastening of its margin on the bottom of the last. The invention is herein illustrated in its application to a pulling-over machine in which the upper is pulled at a plurality of points in the first stage of the cycle, whereupon the machine comes automatically to rest, and in which the margin of. the upper is wiped inwardly over the bottom of the last and fastened upon a subsequent actuation of the starting means. It is to be understood, however, that in many of its aspects the invention is not limited to a machine of the particular type shown, and moreover that within the contemplation of the invention the overlaying of the upper may be efiected only locally atthe fastening points or may comprise the lasting of the entire toe portion of the shoe.

In some kinds of shoe machines the speed of the operating mechanism is determined in accordance with the particular requirements of certain of the operating instrumentalities, although such speed may not be the speed most desirable for operating other instrumentalities of the machine. In machines for performing upper pulling, overlaying and fastening operations, for example, the speed of the machine is determined ith reference to the overlaying and fastening instrumentalities, which must be operated with sufficient rapidity to insure against undesirable loss of the tension under which the upper is stretched and conformed to the last. Such speed of the operating mechanism, however, is greater than is to use mechanism in the nature of a dashpot for retarding the upper pulling movement of the grippers. Such expedients, however, involve some disadvantages which render them more or less open to objection. It is an object of this invention to provide in a shoe machine an organization of operating and controlling means so designed that different instrumentalities may be 0perated each at the speed most desirable for the particular operation which it is adapted to perform. With this and other ends in view, a feature of the invention comprises novel means whereby different inst-run'iental ities are operated through different respective rates of speed of their operating means. In the illustrative application of the invention to a pulling-over machine the invention provides novel means whereby the pulling of the upper is eifected at a slower speed of the operating means than other operations performed by the machine. In a machine of the particular type shown, in which the upper pulling, the overlaying and the fastening instrumentalities are operated or controlled by a. single cam shaft, the desired results are secured by the use'of controlling means whereby the cam shaft is driven at a slower speed in the upper pulling stage of the cycle than in the final stage in. which the overlaying and fastening operations are performed, the controlling means being automatically operative at each stopping of the. machine to produce a shift resulting in a change of speed when the machine is again started. It is to be understood, however, that in many of its aspects the invention is not limited in its scope to this particular means ofcontrol nor to an organization in which the difierent instrumentalities are operated from a single shaft.

The invention also provides, as a further feature, novel means permitting a variation in the speed of the operating mechanism to conform to the requirements of different kinds of work, the machine shown having means for varying the speed at which the upper pulling operation is performed without affecting the speed in the remainder of the cycle.

The above and other features of the invention, including certain details of construction and combinations of parts, will now be more particularly described by reference to the accompanying drawings and pointed out in the claims.

In the drawings:

Fig. l is a view in side elevation of a pulling-over machine in which the invention is incorporated.

Fig. 2 is a transverse vertical section through a portion of the controlling means at the base of the machine, and

Fig. 8 is a horizontal section through portion of the mechanism shown in Fig. 2.

The invention is herein illustrated in its application to a well-known type of pullingover machine, the principal characteristic features of which are shown and described in United States Letters Patent No. 1,029,- 387. granted on June 11, 1912 upon an application of R. F. McFee'ly. Such machines include in their organization a toe gripper 2 and opposite side grippers i for gripping and pulling the upper at the end of the toe and at opposite sides of the forepart of a last, the toe and side grippers being connected respectively to updrawlevers 6 and 8 which are operated by cams on a cam shaft 10 through yielding connections including updraw springs one of which is shown at 12. After the grippers have been operated in the first stage of the cycle through a partial revolution of the cam shaft 10 to grip and to pull the upper, the machine comcs automatically to rest with the upper heid under tension to permit inspection of the work and any adjustments that may be necessary. In the final stage of the cycle, following a subsequent starting of the machine, the margin of the upper is drawn inwardly over the bottom of the last by the grippers, and is then released to the action of overlaying and tacking devices whereby it is wiped inwardly over the margin of the sole or insole and fastened to hold it in its pulled-over condition. The overlaying devices in the machine shown comprise wiper plates 14: for engaging the upper respective ly at the toe end and at the opposite sides of the forepart, these plates being mounted respectively on a front arm 16 and opposite side arms, one of which is seen at 18. These arms 16 and 18 are moved inwardly toward the shoe to operate the wiper plates by connections to the cam shaft 10 including a rearwardly move is slide 20. Mounted also on the front and side arms 16 and 18 are tackers 22 provided with tack driver bars 2% controlled by mechanism connected to the slide whereby the driver bars are released to the action of their 0 aerating springs for driving the several tacks. After the tacking operation has been performed the various parts of the machine are returned to their starting positions, and when the cam shaft 10 has completed its single revolution it is again brought to rest in prepara tion for the operation of th machine upon another shoe. The parts and operations thus far described are characteristic of machines of the well known type illustrated, and for a more definite understanding of the details of construction reference may be made to said prior Patent No. 1,029,387.

Power for rotating the cam shaft 10 is derived, as in prior machines, from a pulley 26 which is mounted on the rear end of the cam siaft and connected to it through reduction gearing, this pulley being driven intermittently through a belt 28 from a.

clutch pulley 30 which is mounted idly on a driving shaft 32 on the base of the machine and is movable lengthwise along said shaft. The shaft 32 is driven continuously by a pulley 3a and is operatively connected at times to the pulley 30 through clutch mecha nism to be hereinafter more fully described whereby upon movement of the pulley 30 toward the right (Fig. 1) the cam shaft 10 is connected to the source of power and upon movement of the pulley in the opposite direction the cam shaft is disconnected from the source of power.

For an understanding of the details of the starting and stopping mechanism characteristic of the general type of machine shown reference may be made to United States Letters Patent No. 791,986, granted on June 6, 1905, upon an application of R. F. McFeely. For the purposes of the present description i is suffioient to state that themachine is started by depression of a. treadle 36 and the consequent elevation of a treadle rod 38 which acts through a tripping device to release a clutch and brake rod 40 to the action of a spring which raises said rod and there by releases a brake shoe d2 from engagement with the pulley 26 and through wedge mechanism forces the pulley 30 into clutching position. At a predetermined time in the resulting movement of the cam shaft 10 the rod a0 is depressed by power operated means to release the clutch and apply the brake. In the machine shown, as hereinbefore explained, this takes place at the end of the updraw movement of the grippers. Upon a subsequent depression of the treadle 36 the machine is again started in the same way, to effect the overlaying and the fastening of the upper, and at the end of this stage of the cycle, as the shaft 10 completes its single revolution, the rod 40 is again depressed to stop the machine.

The clutch mechanism provided for purposes of this invention, as shown in detail in Figs. 2 and 3, comprises a pair of opposed clutch friction disks 44 and 46 which are fast on the pulleys and 34 respectively and are provided with annular concave friction faces. Mounted between the clutch disks and co-operating therewith to transmit power from the pulley 34 to the pulley 30 when the latter is forced toward the right (Fig. 1) by the starting means are a pair of friction wheels 48, these wheels being disposed respectively at opposite sides of the shaft- 32.. Each of the friction wheels 48 is fast on a short shaft 50 rotatably mounted in bearings in a yoke 52 which has a depending stem 54 mounted to turn in a bearing formed in the sup-porting frame 55 of the machine. Each of the yokes 52 is provided a with a bearing for a short vertical spindle 56 the lower end of which has'a socket to receive the pin 57 extending at right angles to the axis of the spindle 56 and fast on a swinging frame lever 58, the latter having pivot studs which are seated in depressions in the frame 55. It will thus be evident that by swinging movement of the lever 58 about the axis of the studs 60 the yokes 52 are swung simultaneously about the axes of their stems 54 to vary the angular relation of the friction wheels 48 to the opposed disks 44 and 46. It will be understood by reference to Fig. 3 that when the wheels 48 are parallel to the shaft 32, as shown by broken lines in said figure, the clutch disk 44 is driven at the same rate of speed as the disk 46. On the other hand, with the wheels positioned as indicated by full lines in Fig. 3, as the result of a swinging movement of the frame lever 58, the disk 44 is driven at a slower speed than the disk 46 by reason of the fact that the wheels engage the disk 44 farther from the axis of the shaft 32 than they engage the disk 46.

For controlling the lever 58 to determine different rates of speed of the machine at different times in the cycle, there is mounted in the frame 55 a shaft 62 on which are secured in spaced relation a pair. of collars 64 and 66 at opposite sides of a roll 68 which is mounted on a depending arm of the lever 58. The collar 64 is provided with a plane lateral surface facing the roll, while the collar 66 has a series of alternate elevations or cams 70 and depressions 72. When the roll 68 is positioned between any one of the cam projections 70 and the opposed plane face of the collar 64 the wheels 48 are p0sitioned as indicated by broken lines in Fig. 3 to drive the disk 44 at substantially the same speed as the disk 46. A spring plunger 74 which engages the depending arm of the lever 58 serves to hold the roll 68 in engagement with the collar 66, and when the shaft 62 is turned in such manner as to position one of the depressions 72 in the collar 66 opposite to the roll 68, the roll is forced into said depression by the swinging movement of the lever 58 and by such movement the wheels 48 are positioned as shown in full lines in Fig. 3 to drive the disk 44 at a slower speed than the disk 46. The parts are normally positioned in this relation prior to the operation of the machine upon a shoe, as shown in Fig. 1, in order to cause the cam shaft 10 to be driven at a comparatively slow rate of speed in the first or upper pulling stage of the cycle.

Turning movement of the shaft 62 for shifting the clutch mechanism in such manner as to change the speed of the machine is effected automatically as an incident to the stopping of the machine at the end of each stage of the cycle of operations through connections to the clutch rod 40 comprising a pawl '76 mounted on a depending arm at the lower end of the clutch rod and a ratchet wheel 78 which is fast on the end of the shaft 62, the teeth of the ratchet wheel being equal in number to the alternate elevations and depressions in the faceof the collar 66. It will thus be seen that each time that the rod 40 is moved downwardly to stop the machine the shaft 62 is turned through the space of one tooth of the ratchet wheel, resulting in a movement of the frame lever 58 in one direction or the other to determine a different speed of operation of the cam shaft 10 when the machine is next started by depression of the treadle 36. Assuming, for example, that the parts are positioned as shown in Fig. 1 with the clutch mechanism in condition for driving the machine at a comparatively slow rate of speed, upon the starting of the machine the pawl 7 6 receives an idle upward movement into position to engage the next tooth of the ratchet wheel. Upon the downward movement of the rod 40 to stop the machine at the end of the upper pulling stage of the cycle the pawl 7 6 acts to turn the shaft '62 a sufficient distance to cause the lever 58 to be swung by the action of one of the cam projections 70 V to position the wheels 48 in parallel relation as indicated by broken lines in Fig. 8. Upon the next starting of the machine the. cam shaft. 10 will consequently be driven at a higher rate of speed than in the first stage of the cycle, to perform the overlaying and fastening operations quickly in such manner as to insure against loss of tension in the upper. lVhen the machine is stopped at the end of this stage of the cycle the shaft 62 is again turned in such manner as to position one of the depressions 7 2 opposite to the roll 68 to cause'the lever 58 to be swung by its spring plunger 74 into position to determine a slower rate of speed for the cam shaft 10 in the first stage of the cycle of operations upon another shoe. It

will be understood that overrui-ining of the shaft 62 may be prevented by any suitable friction device not herein particularly illustrated. In order to pre ent reverse movement of the shaft a holding pawl 79 is provided in engagement with the ratchet wneel T8.

Cooperating with the spring plunger 74 to determine the position of the frame lever 58 is a stop screw 80 which may be set to determine a shorter movement of the lever than permitted by engagement of the roll 68 in the depressions 72. By adjustmentof this screw the speed of the cam shaft 10 in the upper pulling stage of the cycle may be variedto cause the upper to be pulled more or less slowly as may be required by the character of the upper stock in the class of shoes upon which the machine is to operate, such adjustment having no effect upon the speed of the shaft in the remainder of the cycle.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for operating on shoes, the combination with means for performing different operations on a shoe successively in the course of the cycle of operations of the machine, of power driven operating mechanism, and means operative as an incident to the normal cycle of the machine to change the speed of said operating mechanism at a predetermined time in the cycle.

2. In a machine for operating on shoes, the combination with means for performing different operations on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, and controlling means continuously effective in successive cycles of the machine to cause said operating mechanism to run at different rates of speed in different respective stages of each cycle.

8. In a machine for operating on shoes, the combination with means for performing different operations on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, means automatically operative to bring said operating mechanism to rest at the end of each stage of the cycle, and a variable speed device movable to cause different rates of speed of the operating mechanism in different respective stages of the cycle.

4. In a machine for operating on shoes, the combination with means for performing different operations on a. shoe in difi'erent respective stages of the cycle of operations of the machine, of power driven operating mechanism, means automatically operative to bring said operating mechanism to rest at the end of each stage of the cycle, and controlling means automatically operative 1 ,esmoc to cause said operating mechanism to be driven at a different speed in one stage of the cycle than in the preceding stage.

5. In a machine for operating on shoes, the combination with means for performing diflerent operations on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, means automatically operative to stop the machine at the end of each stage of the cycle, and means incidentally operative in the stopping of the machine at the end of one stage of the cycle to condition said operating mechanism to run at a different speed upon the subsequent starting of the machine.

6. In a machine for operating on shoes, the combination with means for performing different operations on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism comprising a power shaft, driving connections for said power shaft including a variable speed power transmitting device, and means for moving said device into position to cause the power shaft to be driven at a different rate of speed in one stage of the cycle than in the preceding stage.

7. In a machine for operating on shoes, the combination with means for performing different operations on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism comprising a power shaft, driving connections for said power shaft including a variable speed ower transmitting device, and controlling means automatically operative between different stages of the cycle to move said device into position to change the speed of the power shaft.

8. In a machine for operating on shoes, the combination with means for performing different operations on a shoe in different respective stages of the cycle of operations of the machine, of operating mechanism comprising a power shaft, controlling means automatically operative to bring said shaft to rest at the end of each stage of the cycle, driving connections for said power shaft in cluding a variable speed device, and mechanism operated by said controlling means for moving said device into position to change the speed of the power shaft for each stage of the cycle.

9. In a machine of the class described, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe, of power driven operating mechanism, and controlling means continuously effective in operations of the machine on successive shoes to cause said operating mechanism to run at a slower speed in the upper pulling operation than in the overlaying and fastening operations on each shoe.

10. In a pullingover machine, the combination with upper pulling means comprising toe and side grippers and overlaying and fastening means associated with the different grippers and arranged to operate on the shoe after the upper has been pulled by said grippers, of power driven operating mechanism, and a variable speed device movable to change the speed of the operating mechanism between different operations on the shoe.

11. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe and positioned at the toe and at o posite sides of the forepart of the shoe, 0 power driven operating mechanism, driving means including a variable speed device, and controlling means automatically operative to move said device into position for driving said mechanism at a higher rate of speed for the overlaying and fastening operations than for the upper pulling operation.

12. In a pulling over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, and speed changing means automatically operative in successive cycles of the machine independently of control by the operator to cause a different speed of the operating mechanism in the overlaying and fastening stage of each cycle than in the upper pulling stage of the cycle.

13. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, controlling means automatically operative to stop the machine at the end of each stage of the cycle, and means incidentally operative upon the stopping of the machine at the end of the upper pulling stage of the cycle to condition the operating mechanism to run at an increased rate of speed upon the subsequent starting of the machine.

14. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means positioned for operation at the toe and at opposite sides of the forepart of a shoe and arranged to operate successively on the shoe in different respective stages of the cycle of operations of the machine, of operating mechanism comprising a power shaft, and driving connections for said power shaft including a variable speed device movable to cause the shaft to be driven at a higher rate of speed for the overlaying and fastening option.

15. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in different respective stages of the cycle of operations of the machine, of operating mechanism comprising a power shaft, driving connections for said shaft including a variable speed device, controlling means automatically operative to bring said shaft to rest at the end of each stage of the cycle of operations, and mechanism operated by said controlling means to move said variable speed device intoposition for changing the speed of the power shaft.

16. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in difierent respective stages of the cycle of operations of the machine, of power driven operating mechanism, controlling means automatically operative to bring said mechanism to rest at the end of each stage of the cycle, and variable speed mechanism automatically operative to increase the speed of the operating mechanism for the overlaying and fastening stage of the cycle and then to condition themachine for operating at a slower speed in the first stage of the cycle of operations uponthe next shoe.

17. In a pulling-over machine, the com-' bination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, controlling means automatically movable to bring said mechanism to rest at the end of each stage of the cycle, driving means including a variable speed device, and connections between said device and the controlling means to cause the device to be shifted into position for operating at an increased speed in the overlaying and fastening stage of the cycle and into position for operating at a slower speed in the upper pulling stage of the cycle. 7

18. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe, of power driven operating mechanism automatically controlled throughout a series of cycles of the machine to run at different rates of speed respectively for operating the upper pulling means and the over aying and fastening means.

19. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in different respective stages of the cycle of operations'of the machine, of power driven operating means constructed and arranged to run at a different speed for operating said upper pulling means than for operating said overlaying and fastening means, controlling means for bringing the machine to a stop at the end'of each stage of the cycle, and a common actuator for initiating the operation of the machine at each stage of the cycle;

20. In a pulling over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate on shoe successively in different respective stages of the cycle of operations of the machine, of power driven operating mechanism comprising a power shaft, mechanism including a variable speed clutch and 'a brake for driving and controlling said power shaft, member movable to release the clutch and apply the brake at the end of each stage of the cycle, and mechanism operated by said'membcr to condition the clutch for changing the speed of the power shaft.

21. In a pulling over machine, the combination with toe and side grippers forpulling an upper over a last and devices for overlaying and fastening the margin of the upper on the bottom of the last at the toe and at opposite sides of the forepart, of a cam shaft for operating and controlling said grippers and overlaying and fastening de vices, and mechanism for driving said cam shaft at a slower rate of speed for the upper pulling operation than for the overlaying and fastening operations.

22. In a pulling-over machine, the combination with toe and side grippers for pulling an upper: over a last and devices for overlaying and fastening the margin of 'thc upper on the bottom of the last at the toe and at opposite sides of the forepa-rt, of a cam shaft for operating and controlling said grippers and overlaying and fastening devices, and operating connections for said cam shaft including a device movable to vary the speed of operative movement of said shaft.

23. In a pulling-over machine, the combination with toe and side grippers for pulling an upper over a last and devices for overlaying and fastening the margin of the upper on the bottom of the last at the toe and at opposite sides of the forepart, of a cam shaft for operating and controlling said grippers and overlaying and fastening devices, and power driving means for said cam shaft comprising a variable speed clutch device arranged to be shifted at a predetermined time relatively to the cycle of -operations to cause said shaft to be driven at a slower rate of speed in the upper pulling operation than in the overlaying and fastening operations.

7 24. In a machine of the class described, the combination with grippers for pulling an upper over a last and devices for overlaying and fastening the margin of the upper on the bottom of the last, of a cam shaft for operating and controlling said grippers and overlaying and fastening devices, a driving shaft for operating said cam shaft, a variable speed clutch associated with said driving shaft for ope-rating the cam shaft'at different rates of speed, and means for shifting said clutch into position to change the speed at an automatically determined point in the cycle.

2-5. In a machineof the class described, the combination with grippers for pulling an upper over last and devices for overlaying and fastening the margin of'the upper on the bottom of the'last, of a cam shaft for operating and controlling said grippers and overlaying and fastening devices, a driving shaft for operating said cam shaft, a variable speed clutch associated with said driving shaft, clutch controlling means for starting and stopping the cam shaft, and mechanism operative as an incident to such control of the clutch for shifting the clutch to vary the speed of the cam shaft.

26. Ina pulling-over machine, the combination with grippers for pulling an upper over a last in one stage of the cycle of opera tions of the machine, and devices for overlaying and fastening the margin of the upper on the bottom of the last in a subsequent stage of the cycle, of a cam shaft for operating and controlling said grippers and overlaying and fastening devices, controlling means automaticall Y operative to bring the machine to a stop at the end of each stage of the cycle, and variable speed mechanism automatically shiftable to cause the cam shaft to be driven at different rates of speed in the different respective stages of the cycle.

27. In a pulling-over machine, the com bination with grippers for pulling an upper over a last in one stage of the cycle of operations of the machine; and devices for over- ,laying and fastening the margin of the upper on the bottom of the last in a subsequent stage ofthe cycle, of a cam shaft for operating and controlling said grippers and overlaying and fastening devices, c0ntrol ling means automatically operative to bring the machine to a stop at the end of each stage of the cycle, a variable speed clutch, and mechanism arranged to shift said clutch at a predetermined time in the cycle to cause the cam shaft to be driven at a higher rate of speed in the over-laying and fastening operations than in the upper pulling operation.

28. In a pulling-"over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in difierent respective stages of the cycle of operations of the machine, of power driven operating mechanism, means for starting the machine and for stopping it at each stage of the cycle of operations, and variable speed mechanism arranged to be controlled by said starting and stopping means to change the speed of the operating mechanism from one stage of the cycle to another.

29. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to operate successively on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, controlling means to cause said operating mechanism to run at a slower speed in the upper pulling stage of the cycle than in the remainder of the cycle, and means for adjustably varying the speed of said mechanism for the upper pulling stage of the cycle without afiecting its speed for the remainder of the cycle.

30. In a pulling-over machine, the com- 1 bination with upper pulling means and overlaying and fastening means arranged to 0perate successively on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, a variable speed device shiftable between different positions to cause different speeds of the operating mechanism in the different respective stages of the cycle, and means for adjustably determining one of said positions to vary the speed for one stage of the cycle without affecting the speed for the other stage of the cycle.

31. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to 0perate successively on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, a variable speed clutch, a clutch controller movable between different positions to determine different speeds of the operating mechanism for the different respective stages of the cycle, and a stop adjustable to vary the limit of movement of said controller.

82. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means arranged to 0perate successively on a shoe in different re spective stages of the cycle of operations of the machine, of power driven operating mechanism, and controlling means adjust able to vary the speed of said operating mechanism for the upper pulling stage of the cycle without affecting its speed for the remainder of the cycle.

33. In a pulling-over machine, the combination with upper pulling means comprising toe and side grippers and overlayin and fastening means associated with the different grippers, of power driven operating mechanism for imparting operative movements to said different means, and means adjustable at the will of the operator to vary the speed of said operating mechanism.

34. In a pulling-over machine, the combination with upper pulling means and overlaying and fastening means, of power driven operating mechanism comprising a power shaft, and a controlling device adjustable at the will of the operator to vary the speed of said shaft for the upper pulling operation without affecting its speed for the overlaying and fastening operations.

35. In a pulling-over machine, the combination with upper pulling means and over laying and fastening means, of power driven operating mechanism, controlling means to cause said operating mechanism to run at a different speed for the upper pulling oper ation than for the overlaying and fastening operations, and additional means for adjustably varying the speed of said'mechanism.

36. In a machine of the class described, the combination with means for performing different operations on a shoe successively in the course of the cycle of operations of the machine, of power driven operating mechanism, controlling means movable at a predetermined time in the cycle of operations to change the speed of said operating mechanism, and additional means for adjustably varying the speed of said mechanism.

37. In a machine of the class described, the combination with means for performing different operations on a shoe in different respective stages of the cycle of operations of the machine, of power driven operating mechanism, controlling means for chan ing the speed of said operating mechanism rom one stage of the cycle to another, and additional means adjustable to vary the speed of said mechanism for one stage of the cycle without affecting its speed for the remainder of the cycle.

In testimony whereof I have signed my name to this specification.

CHARLES FAIVCETT BENNION. 

